It's a problem that Albert Einstein identified more than 100 years ago. It's a problem we could be on the cusp of solving, or that could take another century to untangle. And the problem is that we ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An image of a black hole surrounded by matter. Does the secret of quantum gravity lie around ...